From ca16f286efd21a8c0d627a85679f6995af26889f Mon Sep 17 00:00:00 2001
From: Michael Gisbers <michael@gisbers.de>
Date: Wed, 2 Jan 2019 11:25:45 +0100
Subject: update-tunnelbroker: move configuration to global-config...

... and get the external ip address from cloud.

Signed-off-by: Michael Gisbers <michael@gisbers.de>
Signed-off-by: Christian Hesse <mail@eworm.de>
---
 global-config       |  7 +++++++
 update-tunnelbroker | 40 +++++++++++++++++++++-------------------
 2 files changed, 28 insertions(+), 19 deletions(-)

diff --git a/global-config b/global-config
index bd3250f..cba5e27 100644
--- a/global-config
+++ b/global-config
@@ -95,6 +95,13 @@
 #:global "cert-renew-url" "https://example.com/certificates/";
 :global "cert-renew-pass" "v3ry-s3cr3t";
 
+# Configuration for update-tunnelbroker
+#:global tunnelurl "ipv4.tunnelbroker.net";
+#:global tunneluser "user";
+#:global tunnelpass "v3ry-s3cr3t";
+#:global tunnelid "user-XXX.tunnel.tserv6.fra1.ipv6.he.net";
+#:global tunnelint "tunnelbroker";
+
 # Do *NOT* change these!
 :global "sent-routeros-update-notification" "-";
 :global "sent-lte-firmware-update-notification" "-";
diff --git a/update-tunnelbroker b/update-tunnelbroker
index 05a4a8e..ee8e0e8 100644
--- a/update-tunnelbroker
+++ b/update-tunnelbroker
@@ -1,31 +1,33 @@
 #!rsc
 # RouterOS script: update-tunnelbroker
 # Copyright (c) 2013-2019 Christian Hesse <mail@eworm.de>
+#                         Michael Gisbers <michael@gisbers.de>
 
-:local tunnelurl "ipv4.tunnelbroker.net";
-:local tunneluser "user";
-:local tunnelpass "v3ry-s3cr3t";
-:local tunnelid "user-XXX.tunnel.tserv6.fra1.ipv6.he.net";
+:global tunnelurl;
+:global tunneluser;
+:global tunnelpass;
+:global tunnelid;
+:global tunnelint;
 
-# name of the local tunnel interface
-:local tunnelint "tunnelbroker";
+:if ([ / ip cloud get ddns-enabled ] != true) do={
+  :error "IP cloud DDNS is not enabled.";
+}
 
 # get the last ip address from tunnel interface
 :local tunnellastip [ / interface 6to4 get [ / interface 6to4 find where name=$tunnelint ] local-address ];
 
-# Get the current ip address on interface with default route
-:local tunnelip [ / ip route get [ / ip route find where gateway=[ / ip route get [ / ip route find where dynamic=yes and dst-address="0.0.0.0/0" dynamic active=yes ] gateway ] dst-address!="0.0.0.0/0" ] pref-src ];
+# Get the current ip address from cloud
+/ ip cloud force-update;
+while ([ / ip cloud get status ] != "updated" ) do={
+  :delay 1s;
+}
+:local tunnelip [ / ip cloud get public-address ];
 
-# Did we get an IP address to compare?
-:if ([ :typeof $tunnelip ] = nil) do={
-  :log warning ("No default route? Could not get address, please check.");
-} else={
-  :if ($tunnelip != $tunnellastip) do={
-    :log info ("Local address changed, sending UPDATE to tunnelbroker! New address: " . $tunnelip);
-    / tool fetch mode=https address=$tunnelurl user=$tunneluser password=$tunnelpass \
+:if ($tunnelip != $tunnellastip) do={
+  :log info ("Local address changed, sending UPDATE to tunnelbroker! New address: " . $tunnelip);
+  / tool fetch mode=https address=$tunnelurl user=$tunneluser password=$tunnelpass \
       src-path=("/nic/update\?hostname=" . $tunnelid) keep-result=no;
-    / interface 6to4 set [ / interface 6to4 find where name=$tunnelint ] local-address=$tunnelip;
-  } else={
-    :log debug "All tunnelbroker configuration is up to date.";
-  }
+  / interface 6to4 set [ / interface 6to4 find where name=$tunnelint ] local-address=$tunnelip;
+} else={
+  :log debug "All tunnelbroker configuration is up to date.";
 }
-- 
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